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https://issues.apache.org/jira/browse/MADLIB-1002?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Frank McQuillan updated MADLIB-1002:
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Summary: Sessionization - Phase 3 (minimum time) (was: Sessionization -
Phase 3)
> Sessionization - Phase 3 (minimum time)
> ---------------------------------------
>
> Key: MADLIB-1002
> URL: https://issues.apache.org/jira/browse/MADLIB-1002
> Project: Apache MADlib
> Issue Type: New Feature
> Components: Module: Utilities
> Reporter: Frank McQuillan
> Assignee: Nandish Jayaram
> Priority: Minor
> Labels: gsoc2016, starter
> Fix For: v1.9.1
>
>
> Story
> As a data scientist, I want to perform session reconstruction on my data set,
> so that I can prepare for input into other algorithms like path functions, or
> predictive analytics algorithms.
> This is a follow on to
> https://issues.apache.org/jira/browse/MADLIB-909
> https://issues.apache.org/jira/browse/MADLIB-1001
> to add minimum time and NULL management.
> Details
> Proposed interface changes:
> params (optional)
> TEXT, default: NULL. Parameters for sessionization in a comma-delimited
> string of key-value pairs. See the description below for details.
> Parameters
> Parameters in this section are supplied in the params argument as a string
> containing a comma-delimited list of key-value pairs. All of these named
> parameters are optional, and their order does not matter. You must use the
> format <param_name> = <value> to specify the value of a parameter, otherwise
> the parameter is ignored.
> {code}
> ‘output_all_cols = <value>,
> create_view = <value>’
> {code}
> Parameters
> output_all_cols (Boolean)
> BOOLEAN default: FALSE. Controls which columns are output. If FALSE,
> only the partition, time stamp and the generated session ID columns are
> output. (The assumption is that the partition columns together with the time
> stamp column will be sufficient to perform a join with the input table.) If
> TRUE, all columns from the source table are output in addition to the
> generated session ID.
> create_view (Boolean)
> BOOLEAN default: TRUE. Determines whether to create a view or
> materialize a table as output. If you only needed session info once, creating
> a view could be significantly faster than materializing as a table.
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